Hoshi was born Kwon Soonyoung 권순영 on Saturday, June 15, 1996, in Namyangju, Gyeonggi-do.

Like fellow members Jun, Wonwoo, and Woozi, he was born in the Chinese Year of the Rat. He and Jun are both Geminis. He’s 178 cm or 5'10", the same height as DK. Hoshi, Jeonghan, Jun, Mingyu, and Seungkwan’s blood type is B.

He attended Maseok High School. He speaks Japanese and Mandarin. He has an older sister and a younger sibling.

Hoshi appeared in Nu’est’s music video for “Face” and Hello Venus’ music video for “Venus.” He’s the leader of Seventeen’s performance sub-unit. He choreographs many of Seventeen’s routines.

Hoshi likes to collect bizarre photos of the members. Most of those photos are of DK. He deleted most of them as a cautionary measure, in case he loses his phone and the photos fall into the wrong hands.

He has a black belt in taekwondo and was a taekwondo champion when he was younger. He likes Japanese food. He’s a big fan of Shinee.